Supriya Ghosh

Hibiscus denudatus

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Kingdom  Plantae
Family  Malvaceae
Scientific name  Hibiscus denudatus
Rank  Species
Order  Malvales
Genus  Hibiscus
Higher classification  Hibiscus
Hibiscus denudatus Hibiscus denudatus Wikipedia
Similar  Hibiscus, Mallows, Hibiscus coulteri, Hibiscus dasycalyx, Hibiscus clayi

Hibiscus denudatus (common names: paleface, rock hibiscus) is a perennial shrub of the mallow family, Malvaceae. It is in the rosemallow genus, Hibiscus.

Hibiscus denudatus rockhibiscusjpg

It is found in the southwest of North America in the southwestern United States and northern Mexico in the states of extreme southeast California, southern Nevada, southern Arizona and New Mexico, southwest Texas, Baja California-north, Sonora, Chihuahua, and Coahuila. It can be found in the Colorado and Sonoran Deserts, and in the east to the Chihuahuan Desert.

Hibiscus denudatus Paleface Rock Hibiscus Hibiscus Denudatus

In California, Rock Hibiscus is exclusive to the southeast, the Colorado Desert-(northwestern Sonoran Desert) and neighboring Baja California state, Mexico.

Hibiscus denudatus hasbrouckasueduimglibseinetMalvaceaephotosH

Plant form

Hibiscus denudatus Hibiscus denudatus Benth Checklist View

The form of the plant is somewhat straggly vertical branches reaching 2–4 feet (1.5 m), and not always a wide, full shrub. The leaves are small to 1½ in and about the same in width, and finely toothed. The leaves are a medium yellow green, hairy-surfaced, and elliptical to ovoid in shape.

Hibiscus denudatus Hibiscus denudatus Paleface Rock Hibiscus Naked Hibiscus

The flower is a pale white, hence the name paleface, or pale light lavender to light pink. The petals can be rice paper thin, and on some plants nearly translucent; the flower petals are broad and roundish, also overlapping; the entire flower is a broad cup shape. One vertical branch will often have a terminal flower, and axial flowers along the branch. The flowers will bloom depending on seasonal temperatures starting in January to the end of late summer/fall in October.

Hibiscus denudatus SEINet Arizona Chapter Hibiscus denudatus

The plant can be found in desert washes, also rocky slopes, and mesas, up to 2,000 feet (610 m) elevation. In the southwest Arizona deserts in the western Sonoran Desert, it can be found in the desert washes with desert lavender which has a similar color and shaped leaf; the desert lavender often blooms before Rock Hibiscus.


Hibiscus denudatus Wikipedia

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Hibiscus clayi
Hibiscus dasycalyx